let b_clear = false;

let capture1

// Run the code then replace deviceId string refering console results.

function setup() {

  let device1 = {

    video: {

      deviceId: '2dcd9cc7e0e39f10346178cd8d42ffcfd7c73fd05bb98d8562acba5c6b3e7ecf',

      width: 640,

      height: 480

    }

  };

​

  capture1 = createCapture(device1);

  capture1.hide();

​

  createCanvas(640, 480);

  blendMode(LIGHTEST);

  frameRate(10);

}

​

function draw() {

  if (b_clear == true) {

    background(255);

    clear(); 

    b_clear = false;

​

  }

//  tint(100);

  image(capture1, 0, 0, width, height);

}

​

function keyPressed() {

  if (key == ' ') {

    b_clear = true;

​

  }

  else if( key == 's' ){

    save("output.png"); 

  }

}

​